QPwmc is a full featured Qt4 pwmd client. It can manage remote hosts, generate keys when using gpg-agent, change a data file passphrase via pinentry or keyfile, send a protocol command to pwmd, and more. It is a work in progress but is very functional.

The program arbtt, the automatic rule-based time tracker, allows you to investigate how you spend your time, without having to manually specify what you are doing. arbtt records which windows are open and active, and provides you with a powerful rule-based language to afterwards categorize your work.

squint is command that duplicates the output of a monitor into an X11 window. It is designed to allow you to display a presentation (or any other kind of demonstration) on multiple monitors at the same time without cloning the entire screen.

i3 is a dynamic tiling window manager. Its key features are correct implementation of Xinerama (workspaces are assigned to virtual screens, and it does the right thing when attaching new monitors) and XrandR support (which is still unfinished). Both horizontal and vertical columns can be used in tiling. There is a special focus is on writing clean, readable, and well documented code. i3 uses xcb for asynchronous communication with X11, and has several measures to be very fast. i3 is primarily targeted at advanced users and developers.

libXbgi is a compatibility library that aids in porting old programs written for Turbo/Borland C to X11, on Linux and other Unix-like systems. It also provides extensions for RGB colors and mouse support.

xsudo.sh is an X11 sudo wrapper. It is intended to do what gksudo and kdesudo do without their dependencies on GTK or Qt. It is written to be fully Bourne shell-compatible. Instead of GTK or Qt, the one big dependency is OpenSSH.